Equalizer for car-couplings.



No. 690,298. Patented Dec. 3|, I901 KISER.

EQUALIZER FOR CAR COUPLINGS.

(Application filed Sept. 11, 1901.)

(No model.) 2 sh ts-sheet" l.

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V [Ill/Ill Jiifizea 636. Invasion flflaalIzZyez-t Ilo. 590;"298. Patented Dec. 3|, I901.

v I I. L. KISER.

EQUALIZER FOB CAB COUPLINGS.

(Application filed Sept. 11, 1901) v 2 Sheets-Sheet '2.

( No Model.)

UNITED STATES PATENT OFFICE.

EQUALIZER FOR CAR-COUPLINGS.

SPECIFIGATIQN forming part of Letters Patent No. 690,298, dated. December 31, 1901.

Application filed September 11,1901. Serial No. 76,055. (No model.)

To aZZ whom, it may concern.-

Be it known that I, ISAAC L. KISER, a citizen of the United States, residing at Little Rock, in the county of Pulaski and State of Arkansas, have invented new and useful Improvements in Equalizers for Car-Couplings, of which the following is a specification.

This invention relates to an equalizer for car-couplings, and it is especially intended for use in combination with the draw-bars of such couplings, and the improved device is thoroughly compact in its structure, and it has means that are capable of horizontal and perpendicular movements with a draw bar or stem, and it reduces vibration in said stem, and as it crowds the-same friction in the d rawhead is materially reduced.

The improved device is light, yetthoroughly strong, and is capable of manufacture at a low figure. Its principal parts may be made of wrought-iron, malleable iron, basic steel, or other suitable material.

Said equalizer involves in its construction a plurality of yieldingly-mounted frames, one of which is adapted to directly engage or hug the draw-bar of a coupling. In the present case one of these auxiliary frames is carried by the other, and the supporting-frame in turn is carried fixedly upon the car. It preferably depends from the flooring of such car.

The invention is notlimited to the construction shown and described, for divers changes within the scope of the claims, appended to this description, may be adopted. It is also stated that the invention is not restricted in its employment in conjunction with any particular style of car-coupling draw bar or stem, for it is adapted for efficient use in connection with may kinds of draw-bars.

The invention is clearly illustrated in the accompanying drawings, forming a part of V the specification, in which- Figure 1 is a sectional side elevation of an equalizer including my improvements in one embodiment thereof, showing it in connection with a draw-bar. Fig. 2 is a sectional front View of the same. Fig. 3 is a detail View of the main frame with its parts detached. Fig. 4 is a similar view of the outer auxiliary frame, and Figs. 5 and 6 are like views of two of the parts of the inner auxiliary frame.

Like characters refer to like parts in all the figures.

In the drawings 1 have shown a draw bar or stem 5, and it is embraced by my improved equalizer, which involves in its organization a main frame, as 6, and a pair of auxiliary frames, as 7 and frame. Said main frame is fastened in some suitable manner to the beams or timbers of a car at a convenient place. As a fastening means I have shown bolts, as 9, passing through the opposite sides of said main frame, and the latter with the auxiliary frames are shown as being of rectangular form, although this is not essential.

The auxiliary frame 7 is slidably supported by the main frame, it having flanges, as 7, at its opposite ends overlapping the side bars of the main frame. Therefore it will be understood that said auxiliary frame has a vertical movement upon the main frame 6.

Theinner auxiliary frame Sis slidingly supported by the outer auxiliary frame 7, it having a horizontal motion and its upper and lower bars having flanges 8 overlapping the corresponding bars of the said frame 7. The

several flanges described serve as efficient guiding means for the slidable frames during their reciprocations.

I The upper and lower members of the fixed or main frame6 and the outer auxiliary frame 7 have cylindrical seats, as 10, arranged in cooperating pairs, the respective seats of the pairs being represented as being in perpendicular alinement and as freely receiving the opposite ends of strong protractile springs, as 12, which when compressed serve to return the said frame 7 to its initial position after it has been caused to yield upon motion of the draw-bar.

The vertical bars of the two auxiliary frames have similar seats, as 13, adapted to receive springs, as 14, which perform a function like those to which allusion has just been made. The auxiliary frames therefore have independent movements, or they can operate in unison.

The inner frame 8 of the equalizer has a central hole, as 15, through which the drawbar 5 passes, the fit being a snug or close one, and as the movements described are obtained 8, inclosed by said main I am enabled to reduce vibration and materially reduce friction.

, The side bars of the main frame are grooved, as at 9, to receive the bolts 9, and the latter pass through the lower horizontal barof said main frame, said side bars being seated at their lower ends in recesses, as 6, in the said lower horizontal bar, the whole forming a thoroughly stable structure, and said main frame, as well as the auxiliary ones, may be braced to any desired extent with stilf wrought-iron rods or straps or in any other convenient manner.

The inner auxiliary frame 8 consists in the present case of four pieces, the top and bottom ones of which are denoted by a and the side ones by b. The side bars or members b carry the seats 13, the parts being shown as formed integral and the upper and lower ends of the same being flanged at b to overlap the horizontal portions of the frame 7, and said bars I) are out out, as at W, to facilitate their being put in place.

The horizontal parts a, upon which the flanges 8 are formed, space or separate the parts Z), and the ends of the same engage the inner faces of the parts Z), near the top and bottom thereof.

For securing the yielding movement of the frames 7 and 8 other springs than those of the coiled kind can be employed, the invention not being limited in this respect.

Having described the invention, what I claim is- 1. An equalizer of the class described including a plurality of yieldinglymounted frames one of which is adapted to engage the draw-bar of a car-coupling said frames being movable in transverse directions and one of them being supported by another.

2. An equalizer of the class described including a main frame and a plurality of yieldingly-mounted auxiliary frames one of which carries the other and the auxiliary frame which carries the other auxiliary frame being sustained by the main frame.

3. An equalizer of the class described in cluding a main frame, an auxiliary frame carried by the main frame, springs bearing againstsaid frames, a second auxiliary frame carried by the other auxiliary frame, and springs bearing against the auxiliary frames.

4. An equalizer of the class described including a main frame, a yieldingly-mounted auxiliary frame sustained by and having flanges fitting'over the main frame and a second and yieldingly-mounted auxiliary frame carried by and having flanges fitting over the first auxiliary frame.

5. An equalizer-of the class described including a main frame having channeled side bars and a cross-bar recessed to receive said side bars, bolts passing through the crossbars of said frame and lying in the channels of the side bars thereof, and a plurality of yieldingly-mounted auxiliary frames mounted inside the main frame.

6. An equalizer of the class described includinga main frame and a plurality of auxiliary frames inside said main frame each of said frameshaving cylindrical seats, and one of said auxiliary frames being carried by the other auxiliary frame, and coiled springs the ends of which are located in said seats.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

IS AAo L. KISER.

\Vitnesses:

W. J. XVATsoN, H. W. WATSON. 

